APA (7th ed.) Citation

Campbell Collaboration. (2004). Campbell Systematic Reviews. [Verlag nicht ermittelbar].

Chicago Style (17th ed.) Citation

Campbell Collaboration. Campbell Systematic Reviews. Oslo: [Verlag nicht ermittelbar], 2004.

MLA (9th ed.) Citation

Campbell Collaboration. Campbell Systematic Reviews. [Verlag nicht ermittelbar], 2004.

Warning: These citations may not always be 100% accurate.